diff --git a/Dockerfile b/Dockerfile
index 1e9e22b..218e340 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -31,7 +31,7 @@ RUN CGO_ENABLED=0 go build -o /out/hotgo main.go
 # ---- Stage 3: runtime ----
 FROM alpine:3.22
 
-RUN apk add --no-cache ca-certificates gettext bash
+RUN apk add --no-cache ca-certificates gettext bash tzdata
 
 WORKDIR /app